/*----------------------------------------------------------------------------
 * Copyright (c) <2013-2015>, <Huawei Technologies Co., Ltd>
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *---------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
 * Notice of Export Control Law
 * ===============================================
 * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
 * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
 * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
 * applicable export control laws and regulations.
 *---------------------------------------------------------------------------*/

#include "los_base.h"
#include "los_mux.h"
#include "los_hwi.h"
#include "linux/device.h"
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include "stdio.h"
#include "regulator.h"


#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/*lint -esym(528,sfn_hisimeidia_regulator_init4)*/

struct hisi_regulator {
    struct regulator_desc desc;
    struct regulator_dev *regdev;
};




static int hisimedia_reg_set_voltage(struct regulator_dev *rdev, int set_volt)
{

    return 0;
}


static int hisimedia_reg_get_voltage(struct regulator_dev *rdev)
{

    return 3900000;
}




static struct regulator_ops hisimedia_regulator_ops = {
    .get_voltage = hisimedia_reg_get_voltage,
    .set_voltage = hisimedia_reg_set_voltage,
};



static int hisimedia_regulator_probe(struct platform_device *pdev)
{
    struct hisi_regulator *reg;
    struct regulator_config *config = (struct regulator_config *)dev_get_platdata(&pdev->dev);

    if (!config) {
        return -EINVAL;
    }

    reg = (struct hisi_regulator *)malloc(sizeof(struct hisi_regulator));
    if (!reg) {
        return -ENOMEM;
    }


    if (config->constraints.valid_ops_mask & REGULATOR_CHANGE_VOLTAGE) {
        reg->desc.type = REGULATOR_VOLTAGE;
        reg->desc.n_voltages = (config->constraints.max_uV - config->constraints.min_uV) /
                               config->constraints.step_uV;
        reg->desc.uV_step = config->constraints.step_uV;
    } else {
        PRINT_ERR("hisimedia_regulator_probe: Current.\n");
    }

    reg->desc.ops = &hisimedia_regulator_ops;

    config->dev = pdev->dev;
    config->driver_data = reg;

    reg->regdev = regulator_register(&reg->desc, config);
    if (reg->regdev == NULL) {
        return -EINVAL;
    }

    platform_set_drvdata(pdev, reg);

    return 0;
}


static struct platform_driver hisimedia_regulator_driver = {
    .probe      = hisimedia_regulator_probe,
    .driver     = {
        .name       = "hisimedia_regulator",
    },
};


int hisimeidia_regulator_init(void)
{
    PRINT_ERR("hisimeidia_regulator_init.\n");
    return platform_driver_register(&hisimedia_regulator_driver);
}

/*lint -e10 -e528*/
subsys_initcall(hisimeidia_regulator_init);
/*lint +e10 +e528*/
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif

